Earthly Possessions Anne Tyler

Charlotte Emory has always lived a quiet, conventional life in Clarion, Maryland. She lives as simply as possible, and one day decides to simplify everything and leave her husband. Her last trip to the bank throws Charlotte's life into an entirely different direction when a restless young man in a nylon jacket takes her hostage during the robbery--and soon the two are heading south into an unknown future, and a most unexpected fate....